101/Woodside Interchange

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101-84 Project Exhibit 11x17 reduced (002)



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Final design is proceeding following City Council’s award of supplemental funds for engineering and project management. Current design activities are focused on sewer and water relocation for County and City facilities, soil stabilization for structure foundations, and artistic features to enhance large walls. Ongoing efforts include completing field surveys, updating parcels on the list of potential property acquisitions, and coordinating with property owners to allow site investigations.

Right of way appraisals are scheduled to begin in summer 2020 and will generate draft appraisal reports in fall 2020. Final design is scheduled to be complete in fall 2020 and submitted to Caltrans for review. After responding to Caltrans’ comments, remaining activities include completing right of way appraisals and securing capital funding. The current capital cost estimate is $210M ($150M for construction and $60M for right of way). These estimates are based on the current design and will be refined as design progresses. Right of way estimates will be updated based on actual appraisals and the final design. Approximately $60M of needed funding is programmed or committed.

The schedule to complete the project is contingent upon securing construction funding. Schedules for right of way acquisition and construction will be set once a complete funding picture is in hand.

Please contact Paul Krupka, the City's Project Manager, pkrupka@redwoodcity.org or 650.504.2299 if you have any questions or comments about the project.

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Project Overview

The City of Redwood City, in cooperation with the California Department of Transportation and the San Mateo County Transportation Authority, is proposing to reconstruct the Route 101/84 (Woodside Road) interchange. The purpose of the project is to relieve existing and future traffic congestion, and to improve traffic safety and vehicular access to and from Route 101 and SR 84 (Woodside Road). The goals include improving highway operations, reducing associated congestion on Redwood City streets, removing barriers to non-motorized travel and minimizing impacts on nearby businesses. The project proposes to modify the on- and off-ramp configuration at the interchange and adjacent local intersections to improve traffic flow, increase safety, provide new pedestrian and bicycle access across Route 101 (which does not presently exist) and provide new and improved sidewalks and bikeways throughout the project area.

The PA & ED phase, completed in December 2016, provided environmental clearance (CEQA and NEPA) of the preferred alternative. The PS&E & Right of Way phase of work began in earnest in August 2017. The PS&E effort includes development of bid documents for construction and coordination of utility relocations. The Right of Way effort involves pre-acquisition activities to update property details and approximate costs in coordination with the engineer, appraisals, acquisition, and clearance of properties necessary for project improvements and areas required for temporary easements for construction. Completion and approval of these efforts along with a complete capital funding picture will be followed by project construction.

The following paragraphs highlight progress of key elements of the current phase of design.

Design Details Benefit All

Traffic operations and safety will be enhanced by new on and off ramps, including the Veterans flyover, modernized and interconnected traffic signal systems and additional lanes on Woodside Road from Route 101 to Bay Road. Drivers will feel dramatic improvements accessing and crossing Route 101.

Pedestrians and bicyclists will benefit from safe, direct shared use paths that cross Route 101 (where none presently exists) along Woodside Road and next to the Union Pacific Railroad Redwood Harbor Industrial Lead serving the Bayfront and Seaport area. These paths will provide dual continuous connections between Broadway and Blomquist/East Bayshore -- and the Bay Trail. Similarly, a bikeway will be built along the Veterans flyover to allow bicyclists to connect between Chestnut Street and Charter Way using an aerial cycle track above Woodside Road. Also, sidewalks and bikeways (bike lanes, cycle tracks, and shared routes) will be built with all roadway improvements to connect existing facilities and further enhance and encourage walking and bicycling in the rapidly changing project area.

Select interchange structures will be enhanced with graphics to complement the local environment for all users of this key City gateway. Similarly, landscape features will help soften the relatively hard edges of the interchange and incorporate recycled water.

The Union Pacific Railroad will benefit from new overhead ramps and improved at-grade crossings and safety signals at Veterans and Blomquist.

Right of Way Support

Additional design details have better defined the permanent acquisitions and temporary construction easements required to build the project. These are being translated into appraisal maps which will be used by the City’s right of way support consultant to conduct formal property appraisals. Current highway and structure capital costs and refined property requirements will provide the basis for developing property acquisition and funding strategies.

Strong Case for Funding

The project offers substantial local, regional, State and Federal transportation benefits by enhancing safety, access and circulation by all users. It will add value to activity centers, existing and planned residential, commercial, industrial and institutional land uses on both sides of Route 101. From a benefit-cost perspective, the project’s reductions in average vehicular delay translate generate project benefits that exceed its costs. This is essential to a high score in funding applications.

The project improves trade by removing a traffic bottleneck that routinely delays Port and Seaport Boulevard area goods movement to and from Route 101. Also, the project improves the utility of the Union Pacific Railroad Redwood Harbor Industrial Lead with new overhead ramps and at-grade crossing improvements. The project complements the Route 101 Managed Lanes Project by enhancing freeway connections and reducing congestion in line with the Route 101 Corridor Mobility Plan.

The City has contributed significant local funds to project planning, environmental review and engineering design. The City is committed to funding the necessary right of way and construction costs through partnerships with local developers, use of transportation impact fees and community benefits and the contribution of city-owned property required for the project. This combination of local sources will be used to leverage County, regional, State and Federal grants to fund the project. 

The City is coordinating with Caltrans regarding roles and responsibilities for construction and necessary agreements concerning construction, operations and maintenance.

Previous Studies

Project Manager
Paul Krupka, P.E.